31648925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 50246784

約数和(自身を除く): 18597859

約数列:

[1, 5, 7, 11, 25, 35, 41, 55, 77, 175, 205, 275, 287, 385, 401, 451, 1025, 1435, 1925, 2005, 2255, 2807, 3157, 4411, 7175, 10025, 11275, 14035, 15785, 16441, 22055, 30877, 70175, 78925, 82205, 110275, 115087, 154385, 180851, 411025, 575435, 771925, 904255, 1265957, 2877175, 4521275, 6329785, 31648925]

約数ペア:

[(1, 31648925), (5, 6329785), (7, 4521275), (11, 2877175), (25, 1265957), (35, 904255), (41, 771925), (55, 575435), (77, 411025), (175, 180851), (205, 154385), (275, 115087), (287, 110275), (385, 82205), (401, 78925), (451, 70175), (1025, 30877), (1435, 22055), (1925, 16441), (2005, 15785), (2255, 14035), (2807, 11275), (3157, 10025), (4411, 7175)]